Norwegian Astronomical Society - Variable Star Section Variable star observations for 1999 Nov 6 - 2000 Oct 28 Observer: Birger Andresen (ABG). Location: Trondheim, Norway. Instruments: 20x80 binoculars (B20x80), 280-mm SCT (C280). Magnitude references: V-magnitudes from Tycho-1 catalogue. Observations: Visual, Argelander step estimates. Object YYYYMMDD(UT) Mag Obs Instrument Ref CYGchi 19991108.965 6.4 ABG B20x80 TYC1 CYGchi 19991125.889 6.1 ABG B20x80 TYC1 CYGchi 19991128.819 6.1 ABG B20x80 TYC1 CYGchi 19991203.882 5.8 ABG B20x80 TYC1 CYGchi 19991208.858 6.0 ABG B20x80 TYC1 CYGchi 19991210.872 6.0 ABG B20x80 TYC1 CYGchi 19991211.875 6.0 ABG B20x80 TYC1 CYGchi 19991219.799 5.7 ABG B20x80 TYC1 CYGchi 19991224.750 5.5 ABG B20x80 TYC1 CYGchi 19991225.726 5.6 ABG B20x80 TYC1 CYGchi 19991227.292 5.7 ABG B20x80 TYC1 CYGchi 19991227.715 5.6 ABG B20x80 TYC1 CYGchi 19991229.694 5.6 ABG B20x80 TYC1 CYGchi 20000101.705 5.4 ABG B20x80 TYC1 CYGchi 20000107.802 5.7 ABG B20x80 TYC1 CYGchi 20000131.240 6.2 ABG B20x80 TYC1 CYGchi 20000209.229 6.5 ABG B20x80 TYC1 CYGchi 20001007.979 10.6 ABG C280 TYC1 CYGchi 20001028.924 9.9 ABG C280 TYC1